About this tool
Colour Swap turns your canvas into an eyedropper — click any pixel to select its colour, then choose a replacement. Adjust the tolerance to cover similar shades, and build up a history of swaps with one-click undo.
How it works
- 1Upload your image.
- 2Click any pixel on the canvas to pick the source colour.
- 3Choose the replacement colour from the colour picker.
- 4Adjust tolerance and click Replace — then repeat for other colours.
Common use cases
- ✓Changing product colours for online shops
- ✓Brand colour updates across assets
- ✓Replacing background colours
- ✓Creating colour variants of illustrations
Privacy first. Colour Swap runs entirely inside your browser using the HTML5 Canvas API. Your images are never uploaded to any server, stored anywhere or shared with third parties. Everything happens locally on your device.
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